//
//  YSNavigationController.h
//  luGongPro
//
//  Created by 王庆学 on 2017/7/31.
//  Copyright © 2017年 王庆学. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface YSNavigationController : UINavigationController

- (void)setNavigationBarCouldBeInvisible;

- (void)setNavigationBarVisible:(BOOL) visible;

- (void)setNavigationBarAlpha:(float) ratio;

@end
